我现在要进入一个椭圆形轨道，因为新的速度已经，不是圆形轨道中的速度。

I now go into an elliptical orbit because the new velocity is no longer the right velocity for a circular orbit.

youdao

同样的，第五个方程序，中的速度同样，会随时间改变，因为这是椭圆形轨道。

Also that velocity, v, in that equation number five will also change with time because it's an elliptical orbit.

youdao